9999993 · 10234006 - 1

At this site we maintain a list of the 5000 Largest Known Primes which is updated hourly.  This list is the most important PrimePages database: a collection of research, records and results all about prime numbers. This page summarizes our information about one of these primes.

This prime's information:

Description:9999993 · 10234006 - 1
Verification status (*):Proven
Official Comment (*):Near-repdigit
Proof-code(s): (*):L1958 : DUrso, Srsieve, NewPGen, OpenPFGW, LLR
Decimal Digits:234013   (log10 is 234012.9999997)
Rank (*):27956 (digit rank is 1)
Entrance Rank (*):1989
Currently on list? (*):no
Submitted:6/5/2011 06:39:28 UTC
Last modified:3/11/2023 15:54:10 UTC
Database id:100342
Status Flags:none
Score (*):42.1714 (normalized score 0.0587)

Archival tags:

There are certain forms classed as archivable: these prime may (at times) remain on this list even if they do not make the Top 5000 proper.  Such primes are tracked with archival tags.
Near-repdigit (archivable *)
Prime on list: no, rank 61
Subcategory: "Near-repdigit"
(archival tag id 213271, tag last modified 2024-02-07 04:37:20)

Verification data:

The Top 5000 Primes is a list for proven primes only. In order to maintain the integrity of this list, we seek to verify the primality of all submissions.  We are currently unable to check all proofs (ECPP, KP, ...), but we will at least trial divide and PRP check every entry before it is included in the list.
machineRedHat Virtual STEM Server
notesCommand: /home/caldwell/client/pfgw -tp -q"9999993*10^234006-1" 2>&1 PFGW Version [GWNUM 25.14] Primality testing 9999993*10^234006-1 [N+1, Brillhart-Lehmer-Selfridge] Running N+1 test using discriminant 7, base 1+sqrt(7) Calling Brillhart-Lehmer-Selfridge with factored part 69.89% 9999993*10^234006-1 is prime! (12068.4673s+0.0681s) [Elapsed time: 3.35 hours]
modified2020-07-07 22:30:31
created2011-06-05 06:43:39

machineRedHat P4 P4
notesCommand: /home/caldwell/client/TrialDiv/TrialDiv -q 9999993 10 234006 -1 2>&1 [Elapsed time: 9.056 seconds]
modified2020-07-07 22:30:31
created2011-06-05 06:48:02

Query times: 0.0002 seconds to select prime, 0.0003 seconds to seek comments.
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